Pith Number

pith:3X2HSNU4

pith:2018:3X2HSNU4NJ57XCDDWCQNXGTVSJ

not attested not anchored not stored refs pending

Coding for Channels with SNR Variation: Spatial Coupling and Efficient Interleaving

Ahmed Hareedy, Homa Esfahanizadeh, Lara Dolecek, Rick Galbraith, Ruiyi Wu

arxiv:1803.06417 v2 · 2018-03-16 · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3X2HSNU4NJ57XCDDWCQNXGTVSJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:12:03.807874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddf479369c6a7bfb8863b0a0db9a75927267a6d70e0095420720cbcdb30c0268

Aliases

arxiv: 1803.06417 · arxiv_version: 1803.06417v2 · doi: 10.48550/arxiv.1803.06417 · pith_short_12: 3X2HSNU4NJ57 · pith_short_16: 3X2HSNU4NJ57XCDD · pith_short_8: 3X2HSNU4

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3X2HSNU4NJ57XCDDWCQNXGTVSJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ddf479369c6a7bfb8863b0a0db9a75927267a6d70e0095420720cbcdb30c0268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4559161033b527f538124c125a0b6f40ba5c8b50ee90ebca86b1a373e7651691",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-03-16T22:07:50Z",
    "title_canon_sha256": "183af9fe638703290f12a1bb058caab092544145a36025937883e66f3f8aa689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06417",
    "kind": "arxiv",
    "version": 2
  }
}